Author + information
- Yash Jobanputra,
- Kesavan Sankaramangalam,
- Krishna Kandregula,
- Kinjal Banerjee,
- Brandon Jones,
- Stephanie Mick,
- Amar Krishnaswamy,
- Maan Fares and
- Samir Kapadia
Background: The Medtronic CoreValve, a self-expanding (SE) valve is comprised of trileaflet porcine pericardial tissue sutured into a nitinol frame, as opposed to the balloon-expandable (BE) Edwards SAPIEN 3, a trileaflet bovine pericardial valve mounted in a cobalt chromium stent. We sought to determine if there was a difference in acute recoil between these two valves used for Transcatheter Aortic Valve Replacement (TAVR).
Methods: Recoil was measured in 55 SAPIENS 3 and 29 balloon-dilated CoreValves, using biplane cine-angiographic image analysis of valve deployment. Acute recoil was defined as [(valve diameter at maximal balloon inflation) – (valve diameter after deflation)] / valve diameter at maximal balloon inflation (reported as %).
Results: The mean ± SD acute recoil for SAPIEN 3 in the Right Anterior Oblique (RAO) view was 3.39±1.5%, 3.94 ±6.5% and 3.9±1.7% whereas in the Left Anterior Oblique (LAO) view it was 1.93±1.3%, 3.35±1.6% and 1.99±1.6% at the Upper, middle and lower portions respectively. The mean acute recoil for CoreValve in the RAO view was 4.42±4.2%, 6.73±5.5% and 9.11±4.4% whereas LAO view it was 0.12±3.9%, 1.90±4.6% and 2.97±4.5% at Node 3, Node 2 and Node 1 respectively.
Conclusions: Recoil of the BE valve appears to be more uniform along the valve than for the SE valve. Furthermore, recoil is observed more clearly in the anterior-posterior plane (RAO), and therefore should be assessed in 2 different planes after the procedure.
Poster Hall, Hall C
Saturday, March 18, 2017, 3:45 p.m.-4:30 p.m.
Session Title: Interventional Cardiology: TAVR 3
Abstract Category: 17. Interventional Cardiology: Aortic Valve Disease
Presentation Number: 1243-172
- 2017 American College of Cardiology Foundation